Knowledge Tree
libido
Also known as: sex drive
Facts (29)
Sources
Reproductive Hormones endocrine.org Jan 24, 2022 4 facts
claimLow estrogen levels can cause menopausal symptoms, including hot flashes, fatigue, poor sex drive, and depression.
claimExcessive estradiol in women has been linked to acne, constipation, loss of sex drive, depression, and, if levels are extremely high, an increased risk of uterine cancer, breast cancer, and cardiovascular disease.
claimEarly symptoms and signs of low testosterone in men include a decrease in sex drive, poor erections, low sperm count, and enlarged or tender breasts.
claimLow progesterone levels can lead to excessively high levels of estrogen, which may decrease sex drive, contribute to weight gain, or cause gallbladder problems.
Physiology, Male Reproductive System - StatPearls - NCBI Bookshelf ncbi.nlm.nih.gov 3 facts
claimIncreased levels of estradiol in males can lead to pathological changes including weak bones, development of breasts (gynecomastia), loss of libido, or infertility.
claimTestosterone is responsible for erythropoiesis, pubertal growth spurts, bone density maintenance, closure of epiphyseal plates, deepening of the voice, increase in muscle mass, male physique development, and libido.
claimDisorders of the male reproductive system caused by decreased testosterone levels or testosterone insensitivity lead to symptoms including low libido, failure to ejaculate, decreased bone density, muscle loss, infertility, loss of body hair, and incomplete sexual development if the disorder is congenital or acquired before puberty.
Menstrual Cycle Phases: Decoding the Stages - Perelel perelelhealth.com Oct 22, 2024 2 facts
claimAs progesterone and estrogen levels steadily increase throughout the follicular phase, individuals can expect a boost in energy and mood, and potentially higher libido.
quote“During ovulation oftentimes libido is higher, energy is higher, creativity is higher, mood is at its best, all because nature’s trying to trick you into going out and making a baby,” notes Dr. O’Connor.
Andropause Explained: Why Men 40+ Should Talk About Hormones ... health.stonybrookmedicine.edu Nov 12, 2025 2 facts
procedureThe diagnosis process for andropause typically involves a healthcare professional asking about symptoms such as fatigue, mood shifts, sleep pattern changes, reduced muscle mass, increased body fat, and reduced libido or sexual function.
claimPhysical symptoms of andropause include low energy or persistent fatigue, reduced muscle mass and strength, increased abdominal fat, insomnia, and lower sex drive or sexual function.
Male Hormone Changes by Age & Solutions - Infusion Health infusionhealth.org Jul 21, 2025 2 facts
claimTestosterone acts as the primary male sex hormone and functions to fuel muscle mass, drive libido, maintain bone density, regulate mood, and sustain energy levels.
claimSymptoms of low testosterone in men include persistent fatigue, reduced libido, erectile dysfunction, irritability, low mood, difficulty building muscle, increased abdominal fat, potential bone density loss, night sweats, and sleep disturbances.
Cycle Syncing: How to Understand Your Menstrual Cycle to Reduce ... healthmatters.nyp.org Aug 29, 2025 2 facts
claimDr. Simmons states that during ovulation, a spike in hormones may boost mood, energy levels, and libido.
claimDr. Simmons recommends that individuals trying to conceive can use a calendar or period-tracking app to record their cycle and determine when they are ovulating, and take advantage of the boost in libido during this time.
Andropause, fact or fiction? Men's menopause signs and treatment london-andrology.co.uk 2 facts
claimCommon symptoms of andropause include loss of sexual drive/low libido, low energy, mood changes/depression, reduced muscle mass and strength, night sweats, fewer spontaneous erections, loss of body hair, shrunken testes, fatigue, reduced self-confidence, poor concentration and memory loss, sleep problems, increased body fat, anaemia, and infertility.
claimDoctors often refer to andropause as 'testosterone deficiency' because testosterone controls sexual drive, libido, and fertility.
Understanding the Difference Between Men & Women Hormones prestonspharmacy.com Jan 13, 2026 2 facts
All about the male hormone cycle | Guud Woman guudwoman.com 2 facts
claimTestosterone in men is responsible for vitality, assertiveness, well-being, motivation, self-confidence, libido, muscle mass, strength, cognition, and memory.
claimSymptoms of hormone decline in men include less energy, depression, less muscle mass and strength, increased abdominal fat, lower libido, less firm erections, and increased emotional responses.
Understanding Male Hormonal Changes: A Complete Guide (2025) coremedicalwellness.com Oct 21, 2025 1 fact
claimIn men, hormones regulate energy levels, metabolism, muscle mass, bone density, sexual function, libido, mood, cognitive function, body composition, weight, stress response, and sleep patterns.
Hormonal changes and sexual function in aging men - PubMed - NIH pubmed.ncbi.nlm.nih.gov 1 fact
claimAging and hormonal changes in men are more strongly related to sexual activity and nocturnal erections than to libido (defined as enjoyment, drive, and thoughts).
Which hormones are present in men + women? - MITOcare mitocare.de 1 fact
claimIn men, the male menopause is characterized by a fall in testosterone levels, which can lead to a decrease in sex drive or listlessness.
Hormonal Changes In Men As They Grow Older - Elderplan elderplan.org 1 fact
claimSymptoms associated with low testosterone, such as lower sex drive, erectile dysfunction, breast pain or swelling, infertility, decrease in height, lower bone density, and hot flashes or sweats, can also be caused by age, medications, or other health conditions like having a body mass index of 30 or higher.
The role of Plant Foods in the evolution and Dispersal of early Humans kernsverlag.com Jul 30, 2022 1 fact
claimSubsisting on uncooked plant foods in contemporary humans is associated with undernutrition, reduced libido, amenorrhea, and fatigue.
how hormonal imbalance manifests differently in men and women healthmiro.com 1 fact
claimTestosterone is the primary male hormone responsible for regulating sex drive, muscle mass, energy levels, and mood.
How Testosterone Changes Affect Men's Health as You Age columbiadoctors.org Dec 16, 2025 1 fact
claimPhysical symptoms frequently reported by men experiencing hormonal changes include decreased energy and stamina, reduced muscle mass and strength, increased abdominal fat, changes in sexual function such as erectile dysfunction and decreased libido, changes in sleep patterns, night sweats, reduced bone density, and changes in body hair or skin.
Understanding the Menstrual Cycle: A Breakdown of Its Four Phases raleighob.com Jan 15, 2025 1 fact
claimDuring the ovulatory phase of the menstrual cycle, women may experience increased libido due to higher estrogen levels.